🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.3

Radius: 11.5

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.54 AU - 0.6 AU

Year: 302 Days

Day: 8.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,944,883 km

• M1: 143,016 km (0.079 R)
• M2: 560,842 km (0.107 R)
• M3: 1,029,682 km (0.072 R)
• M4: 1,697,188 km (0.101 R)
• M5: 2,085,394 km (0.094 R)
• M6: 2,941,693 km (0.12 R)
• M7: 3,326,757 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.3

Radius: 10.9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.48 AU - 0.78 AU

Year: 351 Days

Day: 7.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,944,883 km

• M1: 136,134 km (0.083 R)
• M2: 494,271 km (0.077 R)
• M3: 904,020 km (0.086 R)
• M4: 1,368,970 km (0.073 R)
• M5: 1,788,143 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.8

Radius: 10.3

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.68 AU - 0.72 AU

Year: 412 Days

Day: 5.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,944,883 km

• M1: 128,056 km (0.106 R)
• M2: 465,399 km (0.098 R)
• M3: 1,147,715 km (0.082 R)
• M4: 1,468,453 km (0.086 R)
• M5: 1,831,228 km (0.112 R)
• M6: 2,224,969 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.9

Radius: 13.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.96 AU - 1.12 AU

Year: 746 Days

Day: 12.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,944,883 km

• M1: 167,101 km (0.089 R)
• M2: 678,277 km (0.118 R)
• M3: 1,380,489 km (0.093 R)
• M4: 1,797,718 km (0.111 R)
• M5: 2,449,216 km (0.07 R)
• M6: 2,910,427 km (0.054 R)
• M7: 3,388,691 km (0.084 R)
• M8: 4,846,373 km (0.119 R)
• M9: 5,974,939 km (0.077 R)
• M10: 6,710,063 km (0.089 R)
• M11: 8,488,782 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.1

Radius: 15

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.3 AU - 3.12 AU

Year: 3136 Days

Day: 11.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,944,883 km

• M1: 186,549 km (0.106 R)
• M2: 912,248 km (0.059 R)
• M3: 1,415,345 km (0.092 R)
• M4: 1,946,867 km (0.095 R)
• M5: 2,465,223 km (0.047 R)
• M6: 3,521,085 km (0.099 R)
• M7: 5,219,919 km (0.103 R)
• M8: 7,168,580 km (0.103 R)
• M9: 9,639,189 km (0.107 R)
• M10: 10,210,055 km (0.066 R)
• M11: 10,722,876 km (0.06 R)
• M12: 11,336,078 km (0.069 R)
• M13: 13,271,276 km (0.083 R)
• M14: 16,790,865 km (0.086 R)
• M15: 17,675,288 km (0.061 R)
• M16: 18,358,800 km (0.077 R)
• M17: 19,718,196 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.8

Radius: 12

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.38 AU - 3.8 AU

Year: 3818 Days

Day: 7.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,944,883 km

• M1: 155,283 km (0.096 R)
• M2: 534,064 km (0.107 R)
• M3: 942,467 km (0.062 R)
• M4: 1,516,474 km (0.114 R)
• M5: 1,990,250 km (0.092 R)
• M6: 2,799,275 km (0.092 R)
• M7: 4,253,666 km (0.108 R)
• M8: 4,744,197 km (0.079 R)
• M9: 5,771,935 km (0.088 R)
• M10: 6,642,145 km (0.027 R)
• M11: 7,278,236 km (0.105 R)
• M12: 9,277,611 km (0.102 R)
• M13: 12,430,536 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.7

Radius: 12.4

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.59 AU - 3.99 AU

Year: 5186 Days

Day: 9.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,944,883 km

• M1: 161,267 km (0.074 R)
• M2: 588,668 km (0.099 R)
• M3: 1,413,401 km (0.053 R)
• M4: 1,836,463 km (0.113 R)
• M5: 2,329,987 km (0.094 R)
• M6: 3,053,891 km (0.091 R)
• M7: 3,879,821 km (0.1 R)
• M8: 4,485,842 km (0.093 R)
• M9: 7,167,384 km (0.043 R)
• M10: 8,368,206 km (0.118 R)
• M11: 9,698,879 km (0.029 R)
• M12: 11,122,153 km (0.078 R)
• M13: 11,521,130 km (0.104 R)
• M14: 15,013,792 km (0.086 R)
• M15: 16,624,363 km (0.114 R)
• M16: 17,740,363 km (0.109 R)
• M17: 19,475,100 km (0.091 R)
• M18: 25,893,447 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 380.7

Radius: 7.2

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.06 AU - 6.14 AU

Year: 10590 Days

Day: 16.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,944,883 km

• M1: 89,759 km (0.07 R)
• M2: 3,159,806 km (0.115 R)
• M3: 4,358,384 km (0.112 R)
• M4: 5,165,914 km (0.105 R)
• M5: 5,834,167 km (0.098 R)
• M6: 8,695,526 km (0.079 R)
• M7: 10,111,918 km (0.11 R)
• M8: 11,465,480 km (0.061 R)
• M9: 11,942,398 km (0.076 R)
• M10: 13,804,742 km (0.088 R)
• M11: 18,024,000 km (0.1 R)
• M12: 20,232,813 km (0.083 R)
• M13: 21,322,783 km (0.108 R)
• M14: 23,281,617 km (0.076 R)
• M15: 25,003,190 km (0.1 R)
• M16: 25,268,427 km (0.08 R)
• M17: 32,529,608 km (0.088 R)
• M18: 34,023,343 km (0.113 R)
• M19: 34,458,374 km (0.094 R)
• M20: 34,787,040 km (0.073 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 10,705 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit